Unfortunately, there's still about three more hours to go before the old man wakes up, and not much to do in the meantime. His computer, as you expected, is password-protected, and you're not about to try and brute-force it, in case he's limited the number of attempts you can make. And you're not about to leave in search of something to do; you don't think he could escape from the pen, with its wire-mesh walls and locked door, but you're not about to take any chances. Even a search for a weapon, in case he has assistants, takes only a half-hour, and yields a satisfyingly heavy crowbar; the dart-gun he was using is also available, but there's no more propellant caps for the darts.
With little else to do, it's not too long before you decide to have a look at your new body. Fortunately, the old man has installed a full-length mirror in the lab, probably for just this purpose, though it would undoubtedly be more traumatic for anyone he'd be introducing to their new bodies than for you - your thoughts return to the female Velociraptor in the other pen; you're not 100% sure she used to be human, but it certainly wouldn't surprise you. "Don't worry,"you whisper to the sleeping dinosaur, "I'll get us out of this mess." With that, you doff your shirt. Reflected in the mirror, in all her naked glory, is a creature the likes of which the world has never seen: you.
You look more human than dinosaur, but not by much. Your general body shape is that of a human female, but there are many differences. Your legs are on the longer side, but not impractically so. Though it's no trouble to stand straight up, you find yourself almost instinctively resting in a slightly crouched position, knees bent forward, as though you're about to break into a run. In this position, your tail hangs straight out behind you, though it angles down when you straighten up. It's not prehensile, or even very flexible - in fact, it's somewhat stiff, like someone attached a riding crop to your backside. That's going to make sitting in normal chairs or car seats pretty difficult, you realize.
Speaking of your backside, it interests you to note that, though your tail joins smoothly into the bottom of your torso, you don't lack buttocks like real reptiles do; in fact, your butt is quite soft and curvy, something you'd find cute if it weren't on you. Most everything about you is cutely feminine, from your shapely legs and buttocks to your attractive-but-not-cartoonish hourglass figure to your reasonably-sized breasts (you'd hazard a guess that they're about a C cup, but you're hardly an expert in such matters) to your hairless and scaled but still clearly mammalian genitals. (The whole mixture of reptilian appearance with mammalian sexual characteristics is improbable enough to where you'd guess the old man did this on purpose, but he was quite clear that his purpose in changing you was to breed Velociraptors like the one you encountered - has she already through that? you wonder.) Even your face is feminine despite being partly inhuman, your entire lower face jutting out into a semi-muzzle filled with sharp fangs, your lack of external ears conveniently hidden by a framing halo of long golden, complementing your red and orange scales nicely, matching the strip of creamy yellowish-white scales that run from your chin down the front of your torso and the underside of your tail to the very tip.
So that's you in a nutshell: cute and seemingly delicate. The only things about you that look credibly threatening are your teeth, your four-fingered, clawed hands (thankfully including opposable thumbs,) and your feet, complete with the iconic Velociraptor sickle-claw on each big toe. Thank God for those, or you'd look completely harmless. On the other hand, though, that could be turned to your advantage, couldn't it? Maybe this form isn't so bad after all - it certainly could've been worse.
Inspired by that thought, you make another search of the lab. Before long, you hit paydirt - a whole ton of IV bags with multiple cryptic labels on them. Now you have much more bargaining power; at the first treachery, you can turn him into a raptorgirl like yourself to show you're serious, and then use the threat of becoming whatever horrible chimera might result from mixing the IV bags as a further threat. You're just in time in this discovery, too; he's starting to come around.